Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Investments
Fixed maturities, at fair value (amortized cost: 2024—$15,109; 2023—$14,361)	$ 14,409	$ 13,791
Equity securities, at fair value (cost: 2024—$4,278; 2023—$4,282)	11,634	10,989
Other invested assets	641	577
Total investments	26,684	25,357
Cash and cash equivalents	771	907
Investment income receivable	201	192
Finance receivable	111	108
Premiums receivable	3,091	2,592
Reinsurance recoverable	546	651
Prepaid reinsurance premiums	121	55
Deferred policy acquisition costs	1,229	1,093
Land, building and equipment, net, for company use (accumulated depreciation: 2024—$337; 2023—$337)	213	208
Other assets	887	681
Separate accounts	948	925
Total assets	34,802	32,769
Insurance reserves
Reserve for loss and loss expenses	9,555	9,050
Life policy and investment contract reserves	2,966	3,068
Unearned premiums	4,826	4,119
Other liabilities	1,391	1,311
Deferred income tax	1,465	1,324
Note payable	25	25
Long-term debt and lease obligations	849	849
Separate accounts	948	925
Total liabilities	22,025	20,671
Commitments and contingent liabilities (Note 12)
Shareholders' Equity
Common stock, par value—$2 per share; (authorized: 2024 and 2023—500 million shares; issued: 2024 and 2023—198.3 million shares)	397	397
Paid-in capital	1,466	1,437
Retained earnings	13,897	13,084
Accumulated other comprehensive loss	(470)	(435)
Treasury stock at cost (2024—42.1 million shares and 2023—41.3 million shares)	(2,513)	(2,385)
Total shareholders' equity	12,777	12,098
Total liabilities and shareholders' equity	$ 34,802	$ 32,769